The movie, due to hit theaters in September, is a comedy about sex addicts. Pink, Tim Robbins, Carol Kane and Joely Richardson co-star.

It is "a real pathology," Paltrow said of sex addiction when the film debuted at the Toronto Film Festival in September. "It was interesting to learn about it, see what the behavior is and what causes it, and how people are sober. It was very interesting. I learned a lot."